Modified Rankin Scale

No symptoms at all

No significant disability despite symptoms; able to carry out all usual duties and activities.

Slight disability; unable to carry out all previous activities but able to look after own affairs without assistance.

Moderate disability requiring some help, but able to walk without assistance

Moderate severe disability; unable to walk without assistance and unable to attend to won bodily needs without assistance.

Severe disability; bedridden, incontinent, and requiring constant nursing care and attention.